Now showing items 90-109 of 180

    • Impeller Stall Induced by Reverse Propagation of Non-Uniform Flow 

      Iwamoto, Shinji; Shoji, Yoshiaki; Yoneda, Keizo; Nakaniwa, Akihiro; Barrington, Bryan (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      In the case of centrifugal compressors, minor non-uniform flow upstream of the impeller is induced by an asymmetrical configuration in the circumferential direction at the compressor suction casing. This non-uniform flow ...
    • Industrial IoT Brings Benefits and Opportunities for Rotating Equipment Suppliers and Plant Operators 

      Gill, Bob; Shea, Tim (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      The evolution of the Industrial Internet of Things (Industrial IoT) and the increasing availability and affordability of constituent technologies such as sensors, gateways, networks, platforms, and analytics brings with ...
    • Influence of Inter-Coolers Technologies on yhe Performance of Isotherm Centrifugal Compressors 

      Porreca, Luca (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      It is well known that gas compressor work can be greatly reduced by inter-stage cooling. Since decades, isotherm compressors are commonly used where very large volume of gases is needed and low power consumption is ...
    • Integrating Dynamic Machinery Performance with Component Condition to Optimize Reliability 

      Forsthoffer, William Eugene; Forsthoffer, Michael Sean (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Tutorial 21
    • Introduction to Industrial Gas Turbines 

      Kurz, Rainer; Brun, Klaus (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      – Introduction – Thermodynamics/Brayton Cycle etc. – Gas Turbine Components and Performance – Gas Turbine Package Systems – Applications for Industrial Gas Turbines: • Upstream/Midsteam • Power Gen, LNG, etc – Maintaining ...
    • Investigating & Improving the Drooping Curve of A Two-Stage Feed Pump 

      Tzuu Bin, Ng (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      A two-stage between-bearing pump of the upgraded material was supplied to replace the existing machine. The pump utilized a higher number of impeller blades to obtain higher efficiency at its design point, but exhibited a ...
    • Investigation & Resolution on Oxination Feed Pump Pulsation Related fatigue failures 

      Tharakaram, Arni Rajaram; Ashraf, Saqib; Bullert, Rudiger; Korst, Harry; Eijk, André (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 8: This case study presents the detailed analysis on the high pressure Triplex reciprocating pump. Issues were observed during the operation and subsequent detailed pulsation analysis was carried out to understand ...
    • Investigation and Resolution of Governing Valve Linkage Failure for Compressor Drive Steam Turbine 

      Nishiyama, Kenichi; Jain, Mayank; Subramani, Elumalai (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Fatigue failure of Governing Valve Linkage Rod end bearing and wear marks on several parts was observed on a extraction steam turbine (driving a centrifugal compressor) after it was in service for more than 9 year. The top ...
    • Investigation and Resolution of Propane Compressor High Axial Position Alarm 

      Padmanabha, Sridhar Kuppa; Ng, Peck Lui (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Propane compressor in Propane Dewaxing Unit was experiencing intermittent high axial spikes coinciding with the chiller swing. The axial spikes were due to compressor surge caused by sudden drop in flow during chiller ...
    • Investigation of High Bearing Temperature in Centrifugal Compressor 

      Oda, Takashi; Hirata, Daisuke; Mohit, Goenka; Mathew, Ajay; Tasaki, Akinori (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Suction side Journal bearing temperature increased to around 130 degC from 60 degC instantaneously. Further the temperature was decreased to 80 degC accompanied by increase in rotor vibration.(from 5 to 15 ?m p-p) •Bearing ...
    • Investigation of Process Gas Compressor Shaft Vibration Phenomena 

      Vengurlekar, Ashutosh; Lip, Teo Woon; Little, Nathan; Yoshida, Satoru (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 13: This paper presents details of investigation results of issues observed during plant start‐up on a centrifugal compressor. Compressor was operated with air/ nitrogen during start‐up and high shaft vibration ...
    • Investigation of Steam Turbine Blade Failure 

      Vengurlekar, Ashutosh; Fisher, Robert D.; Nakamura, Yuki; Sasaki, Yuichi; Hata, Satoshi; Ikeno, Kyoichi (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 19: Blade failure was observed on a backpressure steam turbine (driving a centrifugal compressor) after it was in service for more than one year. This paper presents details of observations, inspections carried ...
    • Investigation of unexpected Trips in Steam Turbine 

      Nishiyama, Kenichi; Jain, Mayank; Fuchiwaki, Shunsuke; Woon Lip, Teo (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      A 56 MW steam turbine tripped several times over a short period of time although the trip signal was not sent. A thorough examination of the turbine at site ruled out any problems with the trip system. The pressure data ...
    • Large Cooling Water Pump Upgrade for Increased Capacity And Reduced Impeller Cavitation 

      Visser, Frank (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      This case study discusses the hydraulic upgrade of two sets of four (25 percent) large vertical cooling water pumps. To increase the electrical output of subject power station, the cooling water pumps of block 1 and 2 had ...
    • Large Vibrations on Centrifugal Compressor Caused by Inappropriate Operation During Mechanical Running Test 

      Bidaut, Yves (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      During the mechanical test of a centrifugal compressor, the rotor experienced a sudden increase of the radial vibrations. After re-start, the compressor showed unacceptably high vibrations. The RCA revealed: The vibrations ...
    • Lubrication: Fluid Film Bearings: Operation, Maintenance, Troubleshooting 

      Byrne, James; He, Minhui; Holscher, Norbert; Pettinato, Brian (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Turbomachinery bearings: Sleeve and tilting pad journal bearings, Thrust bearings, Babbitt bearing failures Bearing upgrades: Clearances, preload, offset, Installation, Oil Specific questions: Journal bearing fit – loose? ...
    • Magnetic Bearings 

      Raghavendr, Sreenivas; Guerrero, Armando; Gupta, Manoj (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Suggested Topics: • Turbomachinery bearings • Sleeve and tilting pad journal bearings • Babbitt bearing failures • Bearing upgrades • Clearances • Installation • Oil • Annual seals • Polymer seals -Centrifugal compressor ...
    • Materials in Centrifugal Compressor and Steam Turbines: Selection, Processing, and Repair 

      Laney, Scot; Dowson, David (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Materials selection is significant with respect to performance, reliability, and longevity of turbomachinery, particularly given the increasing severity of the process environments. The trends are that the selection is ...
    • Measurements and Analysis of High Machine Vibration - A case Study of Screw Compressor Rub 

      Mekawey, Sherief; Kuebari, Dum (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2016)
      Case Study 21: This case study concerns a screw compressor operating in offshore process environment with unpredictable gas composition. The compressor was tripped on high vibration during startup after seals replacement. ...
    • Mechanical (Liquid) Seals: General (Installation, Operation, Troubleshooting, and Retrofitting) 

      Asokan, S.P.; Bhat, Vasanth; Carmody, Chris; Forsthoffer, Michael Sean; Forsthoffer, William Eugene; Lalithkumar, Seetharam; Morton, John; Necker, Nikolaus; Wu, Shifeng (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
      Mechanical seals are the most common method of sealing industrial centrifugal pumps and other rotary equipment. Although the basic concepts of a seals are simple, successfully using seals requires an understanding of the ...